Spoke to Jet Chips and their programmer will work in our 3.7s.................with a wopping +12hp and +10lbs torque for stage 1..........+17 hp and +13lbs torque for stage 2. I don't see that as a good deal considering the price tag of $250-$300 (depending on where you shop). The cheapest price I found was $228, which makes it out to be $19 per HP for stage 1. Not worth the while in my opinion, plus Jet Chips has some bad reviews on-line.
SO, I ordered the Hypertech speedometer calibrator to correct my tire size issue and hopefully it will correct my "hunting" for gears while on the highway. I will post up in my garage when I recieve it and install it.

I was looking at that one as they claim a bit better fuel economy but from what BD website says that programmer is only compatible on 2008 4.7 and up. I just got a 2007... Plus I was told it won't really even help much on MPG so yeah... Not sure why it wouldn't work on an 07 but will on an 08, but I am a newb when it comes to Commanders... If it was a Wrangler I'm sure it would, then again, those are a different breed.... The one I found was pretty cheap and may help for towing so I may still go for it, but then again according to BD not compatible??

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